Pre-Collision System

PRE-COLLISION: PRE-COLLISION SYSTEM: SYSTEM DESCRIPTION

SYSTEM DESCRIPTION

1. PRE-COLLISION SYSTEM
(a) The pre-collision system optimizes and activates occupant protection equipment in an attempt to reduce injury in a collision.
2. OUTLINE OF PRE-COLLISION SYSTEM






(a) When operating as a result of sudden braking:
- The master cylinder solenoid (skid control ECU) uses brake pressure information and other data to determine if the driver has suddenly applied the brakes. If so, the master cylinder solenoid (skid control ECU) sends a signal to the seat belt control ECU through CAN communication and the pre-collision seat belt activates.

3. OUTLINE OF PRE-COLLISION SEAT BELT CONTROL
(a) Pre-collision seat belt operation conditions:
- The driver firmly depresses the brake pedal suddenly
- The driver oversteers or the vehicle is spinning

(b) Pre-collision seat belt non-operation conditions:
If any of the following conditions are met, the pre-collision seat belt does not operate.
- The seat belts are not fastened
- The engine switch is off or on (ACC)
- The vehicle speed is approximately 30 km/h (18.6 mph) or less
- When the pre-collision seat belts are repeatedly operated and the seat belt control ECU overheats, seat belt operation is prohibited to protect the ECU
HINT: The PCS warning indicator light in the combination meter will blink at this time.

SYSTEM DIAGRAM





Communication Table